Calibration.java

package com.example.abdullah.opencvframeget;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceView;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;

import org.opencv.android.BaseLoaderCallback;
import org.opencv.android.CameraBridgeViewBase;
import org.opencv.android.LoaderCallbackInterface;
import org.opencv.android.OpenCVLoader;
import org.opencv.core.Mat;
import org.opencv.core.Point;
import org.opencv.core.Scalar;
import org.opencv.imgproc.Imgproc;

public class Calibration extends AppCompatActivity implements CameraBridgeViewBase.CvCameraViewListener,View.OnClickListener{
    String TAG="hello";
    Button btndone;
    static int roi=0;
    private CameraBridgeViewBase mOpenCvCameraView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.i(TAG, "called onCreate");
        super.onCreate(savedInstanceState);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        System.loadLibrary("opencv_java3");
        setContentView(R.layout.activity_calibration);
        mOpenCvCameraView = (CameraBridgeViewBase) findViewById(R.id.OpenCvView);
        mOpenCvCameraView.setVisibility(SurfaceView.VISIBLE);
        mOpenCvCameraView.setCvCameraViewListener(this);
        mOpenCvCameraView.setMaxFrameSize(480, 360);
        btndone=(Button)findViewById(R.id.btndone);
        btndone.setOnClickListener(this);
    }

    private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
        @Override
        public void onManagerConnected(int status) {
            switch (status) {
                case LoaderCallbackInterface.SUCCESS:
                {
                    Log.i(TAG, "OpenCV loaded successfully");
                    mOpenCvCameraView.enableView();
                } break;
                default:
                {
                    super.onManagerConnected(status);
                } break;
            }
        }
    };

    @Override
    public void onResume()
    {
        super.onResume();
        OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_6, this, mLoaderCallback);
    }

    @Override
    public void onPause()
    {
        super.onPause();
        if (mOpenCvCameraView != null)
            mOpenCvCameraView.disableView();
    }

    public void onDestroy() {
        super.onDestroy();
        if (mOpenCvCameraView != null)
            mOpenCvCameraView.disableView();
    }
    @Override
    public void onCameraViewStarted(int width, int height) {

    }

    @Override
    public void onCameraViewStopped() {

    }

    int frame_count=0;
    static int ROI=120;
    @Override
    public Mat onCameraFrame(Mat inputFrame) {
        frame_count++;

        if(frame_count>10)
        {
            ROI=Tracker.calibrate(inputFrame.nativeObj);
            Imgproc.rectangle(inputFrame,new Point(0,ROI),new Point(inputFrame.cols()-1,inputFrame.rows()-1),new Scalar(0,255,0,0.8),2);
            roi=ROI;
        }
        return inputFrame;
    }

    @Override
    public void onClick(View v) {

        Intent intent = new Intent(this, MainActivity.class);
        startActivity(intent);
        finish();

    }
}